linux-kernel - [PATCH -v3 1/4] printk, Add pr

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Date:	Thu,  2 Dec 2010 16:05:02 +0800
From:	Huang Ying <ying.huang@...el.com>
To:	Len Brown <lenb@...nel.org>
Cc:	linux-kernel@...r.kernel.org, Andi Kleen <andi@...stfloor.org>,
	Tony Luck <tony.luck@...el.com>, ying.huang@...el.com,
	linux-acpi@...r.kernel.org, Peter Zijlstra <peterz@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>
Subject: [PATCH -v3 1/4] printk, Add pr_pfx for library functions

For library functions doing printk, the log level and line prefix
usually need to be specified by the caller. So this patch adds
"pr_pfx" to make the life of these library functions easier.

Signed-off-by: Huang Ying <ying.huang@...el.com>
---
 include/linux/printk.h |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -202,6 +202,13 @@ extern void print_hex_dump_bytes(const c
 #endif
 
 /*
+ * Used by library functions, where log level and line prefix need to
+ * be specifieded by the caller.
+ */
+#define pr_pfx(pfx, fmt, ...) \
+	printk("%s" fmt, pfx, ##__VA_ARGS__)
+
+/*
  * ratelimited messages with local ratelimit_state,
  * no local ratelimit_state used in the !PRINTK case
  */
--
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